No one of these fathers ever claims for this title any apostolic authority; and it has been already shown that they could not have believed the day to be the Lord’s day by divine appointment. So far, therefore, is the use of this term by these persons as a name for Sunday from conflicting with the statement that Sylvester, by his apostolic authority, established this name as the rightful title of that day, that it shows the act of Sylvester to be exactly suited to the circumstances of the case. Indeed, Nicephorus asserts that Constantine, who considered himself quite as much the head of the church as was the pope, “directed that the day which the Jews considered the first day of the week, and which the Greeks dedicated to the sun, should be called the Lord’s day.”[750] The circumstances of the case render the statements of Lucius and Nicephorus in the highest degree probable. They certainly do not indicate that the pope would deem such act on his part unnecessary. Take a recent event in papal history as an illustration of this case. Only a few years since, Pius IX. decreed that the virgin Mary was born without sin. This had long been asserted by many distinguished writers in the papal church, but it lacked authority as a dogma of that church until the pope, A. D. 1854, gave it his official sanction.[751] It was the work of Constantine and of Sylvester in the early part of the fourth century to establish the festival of the sun, to be a day of rest, by the authority of the empire, and to render it a Christian institution by the authority of St. Peter. The following from Dr. Heylyn, a distinguished member of the Church of England, is worthy of particular attention. In most forcible language, he traces the steps by which the Sunday festival arose to power, contrasting it in this respect with the ancient Sabbath of the Lord; and then, with equal truth and candor, he acknowledges that, as the festival of Sunday was set up by the emperor and the church, the same power can take it down whenever it sees fit. Thus he says:— “Thus do we see upon what grounds the Lord’s day stands; ON CUSTOM FIRST, and VOLUNTARY consecration of it to religious meetings; that custom countenanced by the authority of the church of God, which TACITLY approved the same; and FINALLY CONFIRMED and RATIFIED BY CHRISTIAN PRINCES throughout their empires. And as the day for rest from labors and restraint from business upon that day, [it] received its greatest strength from the supreme magistrate as long as he retained that power which to him belongs; as after from the canons and decrees of councils, the decretals of popes and orders of particular prelates, when the sole managing of ecclesiastical affairs was committed to them.